Can end lining machine



Feb. 7, 1939- j M. L.. HEALD ET AL 2,145,873

' CAN END LINING MACHINE l Filed'July 25, 1935 f o n o y BY 212. Lz/V I ATTORNEYS een@ ahr-741m ffiuanewn nena, rmm,nhme.ma nam;

"L'Bryaint, Roselle, N. '.l., oignon to anCompany, nti-New Jersey Arpumign'frlyfanless, nafssn'xz Newlork, NiY., a corpor'atlen y t The kpresent'inventioxi*relates to liquid applying :machines such, asy end lining @machinesand` i particular reference to novel devices for yeffecting an unobstructed and f liquidconveyingqconnection between a supply ofI liq'uid' yi'naterial contained in a voir and arotatingliquid applyingmechanisrn` ysuch'as a noxiinterfering,

stationary reserf compound lining head inv can endlining i machines. f

l means.

ytat'able orrotating liquid f y In its preferred embodiment thelinventioncon- *templatesfthe transmission of liquid `,lining/ma-` terial toliquid conductingl means rotating with aj Yrevolving applyinghead'which carriesa movable lining nozzle' connected with the liquidconducting The invention is readilyapplicable to canv endflining lmachines having -these characterspraying 1maehinesor the likewhichhave ro? receiving or dispensing a /members which are' best served from a stationary supply tank orreservoir. 'f

v t w; devices wherein aliquid I f the nozzle while the 'head y l Another object is theprovision in a'1..xnafchiney 'y rAri object ofthe 'inventionf is the' provision ,inl

a can endf lining machine wherein the can -end istands'stili'and the nozzle is carried in a rotating caused toftravelearound thecan end contour over thechannel or flange to be lined, of

ducted .from fa stationary tank or `reservoir to is rotating.

" y of. this characterfof devices for'connecting the gstationary tank withV the nozzle on the rotating` head wherein packing glands are dispensed with and wherein free flowing unrestricted passage# ywaysA are provided for highly volatile liquid lining' j materials'orthe likeso that coagulation or ac-V 'f cumuiation of the material inthel passageways is.`

reduced to a minimum. .fr f Another object is the provision of `such a lining 4 machine'.v wherein the supply tank'may be .posif ftioned at'anyavailabl'e' place on or near the m'al V"chine'and'wherein it is connected with the ynozzle i on thelrotatingheadby `ilexibleliquid conducting connections which are. adapted tof'be rotated in timedrelation with'the rotating head; y

Another object -isvrthe provision of devices wherein sucha rotatable flexible connection may be suitably rsupported whilev rotated. e y

Numerous other objects and advantages of the inventionY willbe apparent -aslit isbetter understoodfrom the followingi description, which, taken in, 'connection withl ythe, accompanying drawing,

discloses `a preferred embodiment thereof.

in itsbroader*aspects'may ,beutilizedjk v invr connec'tionwi'th any similar' type of vliquid jL -,g-applying machine such vas llingvfmachinesor y end and which lining material'lis `cony strap 2l. The nipple Pig. 2 is aghorizontal sectional view taken` sub- 5 stantiallyI along the line2-2 in Fig. 1.

The'ypreferred embodiment of the invention vdisclosed in the drawing comprises a mechanism Yhaving a housing or frame Il which may be a part ofa can end lining. machine or theflike'. housing e supports a. rotatable lining head l2, which receives liquid lining materia1,.through a e'xible tubular connectionvcommunicating withv a Vs'upply'of the lining material I3, contained in a sealed stationary, tank or reservoir which may l5 kbera part roi the machine or maybe afdetached separate unit located near the machine. l f Thepart of the connection associated with the lining head I2 comprises a liquid conductingelementor tube Il which isclosed at vitsbottom 20 extends rdown through the head projecting below it androtating with it but is .independently rotated or shifted relative lthereto as will be hereinafter explained. The upper end end of a bushing, which is-carried verticallyin abearing ILformed in the top of the'housing Ii. bushing is supported in the bearing i1 by'- a. bushing Bange; Il rwhich engages the top of the bearing, and by a collar I 9, whichgi's threadedly 80 secured to the'proiecting lowergend of thebushing, and which engages the bottom of the bearing. The bushing has a bore 2| which is in alignment with the bore of the tube il At its upper yend the bore 2| is widened to connect with alarger a5 tube orY hose 2J lis secured by'a clamping'strap 24.

'I'he flexible tube 23,.-1eadsto the tank I I and is `the connection between the rotating head and 40 the `stationary tank.I At the tank end ofthe tubeyit is secured over a nipple 2ly by a clamping l is threadedlyA connected to the upper'end of a vertical pipe Il,l which is carried in ka. tank cover I2, rbolted and sealed/to the 45 top ilange of the tank Il.; The lining material or compound used on the vlining of can end flanges is usually of a highly volatilefnature lforvquiclr drying ypurposes and therefore it is desirable to provide a sealed Vtank for holding it.' The pipe 3i 50 extends down' into the tank toadjacent itsbot` -tom'with its rlcrwer :endl immersed in the lining material Il.

Thepipe Il is mounted in a sleeve Il, which atx its upper end is secured to a :lange 3l formed on 56 'rhein Y oi'` the tube is `threadedly secured inthe lower 25 the bottom of the nipple 2?. The sleeve in turn i's journaled in a bearing 36`which is carried in. a boss 31 forme-d in the tank cove.T 32. This part of the tank mechanism is hermetically sealed by a pair of standard sealing rings 38 which are mounted on the lower end of the sleeve 34, engaging within a counterbore 39 formed in the bottom of the boss 31 and held against the lower end of the bearing 36 by a collar 4| which threadedly engages the lower end of the sleeve.

In the machine illustrated in the drawing the tank I4 is shown as a detached separate unit lo*- cated near the machine and elevated just above the lining head I2. It should be understood, however, that the tank may be placed in any convenient location which can be' reached Iby the flexible tube 23. As an example, the tank may be located directly over the lining head |2 with the flexible tube extending straight up and the pipe 3| emerging from the bottom of the tank instead of its top. the preferred location illustrated the flexible tube 23 is curved in a senil-circle and lis supportedon a plurality of ball bearing units 45,* which are carried in brackets 4B, mounted on the outer ends of spider-arms 41. The arms are secured to a spider frame which is screwed to the top of a gear casing 49, surrounding the tank end of the flexible tube 23 and mounted on top of the tank cover 32. v

The flexible tube 23 is rotated with the lining f head I2 through its connection with the bushing jFor this purpose a driving sprocket 5| is secured to the top of the bushing flange |8 which engages and drives an endless chain 52 which in turn drives a sprocket 53 adjacent the tank end of the tube.

The sprocket 53 is secured tothe hub of a gear 54 and'both sprocket and gear are mounted on a shouldered stud 55 which is carried in one end of a bracket arm 56. The other end of the arm is formed with a flanged hub 51, mounted on the .outside of the bearing 36, and is secured to the top of the boss 31 by cap screws 58. The gear 54 meshes with and drives a gear 6I which is formed on top of the sleeve 34, providing a means of rotating the sleeve in its bearing 36. Through this driving connection the pipe 3| and the flexible tube 23 are rotated with the head 4I2 and tube I5, the pipe and tubes forming an unrestricted liquid conveying passageway from the tank to the head without utilizing any packing glands or forming any obstructions in the line which may tend to accumulate or coagulate or interfere with the free passage of the liquid lining material as it passes through these conduits.

The liquid I3 is forced through this passage by air pressure which is exerted -on the surface of the liquid and which is brought into the tank through a pipe 62 one end of which is threadedly secured in the tankcover 32 and communicating with the tank interior. 'I'he other end of the pipe is associated with any suitable means of delivering a supply of compressed air, such as a compressor or the like.'-

The head I2 may be any kind of a rotating head for dispensing a liquid or semi-liquid such as used on can end lining or can lling or spraying machines, the preferred head illustrated in the drawing being of the end lining type. It is' carried on a sleeve 1I which surrounds the lower To meet the requirements of f end of the liquid conducting tube 'I5 and which is rotatably mounted in a bearing 12 formed in the housing II. At its upper end the sleeve is keyed to a gear 13 which rests on top of the bearing thus vertically supporting the head.v The gear 13 meshes with a driving gear 14 which is associated with any suitable means of 'rotating it in timed relation with the sprockets and gears hereinbefore described. ItV is this system of sprockets and gears which rotates the head I2 and the tubes connecting with the stationary liquid tank just described.

The lower end of the sleeve 1| is formed with a head body 15, which carries a liquid dispensing nozzle 16 which is connected with the lower end of the tube I5, communicating with its interior, by means of a flexible pipe 11. The nozzle is mountedfon a system of compound lever arms which moveit relative to the rotating head body. The nozzle is fixedvon one of these arms indica ted by the character 18, the arm being pinned to the lower end of ashaft 19 which is carried in `a bearing formed as a. part of a second lever arm 8|. The upper end of the shaft 19 is formed as an arm 82 vwhich carries a cam roller 83 engaging within a cam groove 84 of a stationary cam 85, bolted to the under side of a ange 86 formed at the lower end of the sleeve 12.

vThe arm 8| is pinned to the lower end of a shaft 9| which is mounted in a bearing 92 formed as an integral part of the head body 15. Like the shaft 19, the upper end of the shaft 9|.is formed with an arm 93 which carries a cam roller 94 engaging within another outer cam groove 95 formed in the cam 85 adjacent andV above the groove 84.

As the head I2 is rotated by the gears 13, 14

it carries the described arms 'around with it and this shifting which effects rotating movement of the tube I5 relative to the head.-

'Ihe can ends 96 may be individually fed into the machine between spaced guide bars 91 which are secured to the top of a frame 98 on lwhich the housing I I may be supported. 'I'he can ends are positioned over a lifter pad 99 which is disposed directly under the center ofthe rotating h ead I2 in a bearing |0I formed in the frame 98.

'I'he lifter pad 99 with its positioned can end is raised by any suitable mechanism actuated in timed relation with the other moving parts Aof the machine and thus presents the can end to the traveling nozzle 18 for lining. This lifting action unlocks a nozzle operating sleeve |05, the lower end of which extends below the head body 15 and is formed with a laterally projecting finger |06. The finger is engaged by a hooked lever |01, which ispivotally secured to a bracket arm |08 formed on the head body and which is connected by'a link |09 to a plunger ||I, yieldingly held in the closed bottom end of the liquidconducting tube I 5J As the can end is raised it engages the plunger I I moving it up into the tube |5 and pivots the hooked lever |01v away from the locking finger |06.

The nozzle operating sleevev |05 is mounted on the tube I5, inside of the sleeve 1I, and extendsv `-`rl2t be'briey. recapitulated as follows:

j 'Driving gear- 14 drives gears13 which is keyed y Vof the tube I5. ShaftfSI carries armIL'bearing v it is siidably keyed to the tube` is.

The upper end ofthesleevefl05 carries a spring heldcollar f ,II4 which engages the end of a lever I I 5`which lis moved-intime withthe raising of the lifter pad-99. n l I05 is released, the lever "raises the sleeve and As soon` as the finger. |05 of the sleeve j y opens the nozzle "permitting lthelining `material Vto ilow out into thecan' end channel. 'I'hisvis f ing means for turningV the sleeve I05 and ytube I5 eiected by connection of the nozzle needle valve stemfI I8 with a bifurcated finger, I I1 which extends laterally from the lower end. of `the sleeve V|05r disposed opposite nandbeio'wthe finger |05 'and which engages with the needle valve stem.

- 'I'he f bifurcated lingery II1/ also engages the upper partof the nozzle which acts as the drivwith" the'head. Thus the sleeve I 05 and tube I5 move with the nozzle which is-.directly vrcarried on the head body 15. It is thiswindirect connection between` the "head body'and the sleeve r|05* which causes relative movement between-them as the nozzle is radially shifted by the cam grooves a485 i y 'LY if Themeansfor impartingrotation to therdesired interconnectedparts ofV themachine may to sleeve 1I constitutingy a unitary partei' the head member 15. "The latter through its integral bearing 92 'rotates shaft SI bodily about the axis 80, arm 18 and nozzle 16 bodily around said cir'- cularpath'. The yvalve stem IIO of the nozzle which is engaged by the outer bifurcated end of y,finger II1 rotates the latter and the nozzleioper ating sleeve I 05 4of 4which said iingeris an integralnpart. ',Sleeve.i05 is'slidably keyed to the tube I5 tokpermit vertical movement ofthe sleeve relative to the tube, atthe same time imparting rotationto the tube. 'Bushing I5 threaded to theupper end of tube I5 is thereby rotated and v y inuit the driving sprocket, the latter mymum .ilrough chain 52 driving sprocket 53, gears' 54 and 6I, the latter being `rigidly connected to the pi'pegconnection 3 I` toV rotate the latter within the .Y tank,` I4. VThe flexible tube 2l is securedat its opposite endsr to the bushing Il and pipe 3I-re spectively, rotation being thereby imparted to said ilexiole tube at each end to insure against torsional strains. n y

' The present invention is similar as to its general objects, as well as in several respects, to that vau disclosed in United States Patent No.- 2,052,568, for Can end lining machine, issued September l, 1936, to Matthew L. Heald, one of the joint applicants herein, particularly as to the manner oi' rotating the lining head and causing the liquid dispensing nozzle to follow a. predetermined irregular path of travel conforming to the configuration ofthe can end to be lined. The instant invention, however, provides certain im.

, yprovements kover that disclosed in said kissued patent.

Inlining can ends with certainly relatively highly viscous rubber cements or compounds by means of the machine disclosed in said issued patent, it has been found that there is a tendency foLnthe cement to be applied in greater j quantity, for example, at the curved portions of the can end channel thanlalong the straight pory tions thereof, thereby tending to detract from uniform application of the compound around the vperipheral channel of the end to be lined. 'Ihis disadvantage has, been 'found' to be due largely to the fact that in said patent the hollow vertical lshaft 220, which corresponds in its pui-'pose to applicants' rotatingtube I5, is stationary insofar as rotary movement is concerned. The same f is true in the patent of the flexible tube 226 leading from the desired source of lining compound and whichtube communicates with the upper end of the shaft 220 and corresponds 'to appli- .cantsv .rotatable flexible ytube or hose 23 as vdisclosed herein which is :ommunicably connected with the stationary lining compound `'tank I4. By rotating the yinstant liquid rconducting tube I5 which communicates at its lower end with the'liquid dispensing nozzle 16, it has beenfound ythat the'viscosity of certain rubber cements may compound, `that the present invention is primarlly designed.y v It is thought thathe invention and many of its .attendant advantages willbe understood from l theforegoing description, and it will be apparent that various changes may be made in the orm, construction and arrangement of the parts without departing from the spirit and scope'oi the invention or sacrificing alll of its material advantages, the'form' hereinbefore described being merely a preferred embodiment thereof.

We claim: f

l. In a machine for lining can ends, the combination of a rotating head carrying a can end liningnozzle,` a stationary tank for vholding a supply of liquid lining material, means in said tank for conveying said liquid therefrom, rotatable means associated with said head and connected with said nozzle for conducting said liquid to said nozzle, andmeans rotatable on its axis for connecting said rotatable liquid conducting means with said liquid conveying means.

2. In a machine forv lining can ends,'the combination of a rotating headcarrying a can end lining nozzle, a stationary tank for holding a supply of liquid lining material, means in said tank for conveying said liquid therefrom, rotat-v able means associated With said head and connected with said nozzle for conducting said liquid to said nozzle,` and means rotatable on its axis for connecting said rotatable liquid conducting means with said liquid conveying means, all of said means rotating in unison with said head.

3. In a machine for lining can ends, the combination of a rotating head carrying a can end lining nozzle, a stationary tank for holding a supply of liquidn lining material, means in said tank for conveying said liquid therefrom, rotatable means associated with said head and connected ,with said nozzle for conducting said liquid to said nozzle, means rotatable on its axis for connecting said rotatable liquid conducting means connecting said rotatable llquid conducting means with said liquid conveying means, and means for rotating said liquid conducting means and said connecting means in timed relation with said head.

5. In a machine for lining can ends, the cornbination of a rotating head carrying a can end lining nozzle, a stationary tank for holding a supply of liquid lining material, rotatable means in said tank for conveying said liquid therefrom, rotatable means associated with said head and connected With said nozzlefor conducting said liquid to said nozzle, means rotatable on its axis for connecting said liquid conducting means with.

said liquid conveying means for conveying said liquid from said tank to said conducting means, and means for rotating said liquid conducting means, said conveying means and said connecting means in unison and in timed relation with said head.

6. In a machine for lining can ends, the com-v bination of a rotatingvhead carrying a can end lining nozzlel a stationary tank for holding a supply of liquid lining material, means in said tank for conveying said liquid therefrom, rotatable means associated with said head and connected with said nozzle for conducting said liquid to said nozzle, flexible tubular means connecting said liquid conducting means with said liquid conveying means, means for rotatably supporting said flexible tubular means intermediate its ends and means for rotating said liquid conducting means and said tubular means in timed relation with said head.

7. In a machine for lining can ends, thev combination of a rotating head carrying acari end lining nozzle, a stationary sealed tank for holding a supply of liquid liningy material, means in said tank for conveying said liquid therefrom, rotatable means associated with said head and connected with said nozzle for conducting said liquid to said nozzle, means rotatable on its axis for connecting said liquid conducting means with said liquid conveying means, and means associated With said sealed,tank for causing said 'liquid to flow through said conveying, conducting and connecting means into said nozzle.

8. In a machine for dispensing a liquid, the combination of a stationary Vliquid supply reservoir, a rotating dispensing mechanism having means vfor dispensing said liquid to a place of deposit, means rotating with said mechanism for conducting said liquid to said dispensing means,

vand means rotating on its axis in synchronism with said mechanism and communicably con- -nected with said liquid conducting means and with said reservoir to kconvey said liquid from said reservoir to said conducting means. l 9.'In a machine for lining can ends, the combinationl of arotating head carrying a can end lining nozzle, a stationary tank for holding a supply of liquid lining material, means in said tankv for conveying said liquid therefrom, rotatable rmeans associated with said head and communicating with said nozzle for conducting said liquid to said nozzle, means rotatable on its axis y Y for connecting said rotatable liquid conducting means with said liquid conveying means, and means for rotating said head and said liquid conducting and conveying means in timed relation.

10. In a machine for lining irregularly shaped can ends, the combination of a rotating head carrying a can end lining nozzle, a. stationary tank for holding a supply of liquid liningr material, means in said tank for conveying said liquid therefrom, rotatable means associated with said headand connected'with said nozzle .for conducting said liquid to said nozzle, means for moving said nozzle radially relatively to said head as it rotates with the head, means for turning on its axis said liquid conducting means relative to said head, and means for connecting said liquid conducting means with said liquid conveying means for conveying said liquid from the latter to the former,

l1. In a machine for dispensing a liquid,'the combination of a stationary liquid supply tank, a rotatable dispensing nozzle, an axially rotatable fiexible liquid conduit communicably connected with said tank and with said nozzle, andv means for rotating said conduit in timed relation with the rotation of said nozzle.

MATTHEW L. HEALD. HARVEY L. BRYANT. 

